Invocable

All Known Implementing Classes:

AbstractInvocable, ReflectionWrapperInvocable
```
public interface Invocable
```
An interface for a object provide information about functions that can be invoked on itself (through a key) and API for invoke the method on on itself

Version:

$Id: Invocable.java,v 1.2 2004/08/26 16:08:23 thlee Exp $ $Name: $

Author:

TiongHiang Lee (thlee@onemindsoft.org)

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`canInvoke(java.lang.String functionName, java.lang.Object[] args)`	whether the function can be invoke with the arguments
`InvocableFunction`	`getFunction(java.lang.String functionName, java.lang.Object[] args)`	Get the function
`java.lang.Object`	`invoke(java.lang.String functionName, java.lang.Object[] args)`	invoke the function with the arguments provided

- Method Detail
  - canInvoke
```
boolean canInvoke(java.lang.String functionName,
                  java.lang.Object[] args)
```
    whether the function can be invoke with the arguments
    
    Parameters:
    
    functionName - the function name
    
    args - the arguments
    
    Returns:
    
    true if can invoke
  - getFunction
```
InvocableFunction getFunction(java.lang.String functionName,
                              java.lang.Object[] args)
```
    Get the function
    
    Parameters:
    
    functionName - the function name
    
    args - the arguments
    
    Returns:
    
    the function, or null if the function cannot be found
  - invoke
```
java.lang.Object invoke(java.lang.String functionName,
                        java.lang.Object[] args)
                 throws java.lang.Exception
```
    invoke the function with the arguments provided
    
    Parameters:
    
    functionName - the function name
    
    args - the arguments
    
    Returns:
    
    the object returns from the invocation
    
    Throws:
    
    java.lang.Exception - if there's problem invoking the function